E21B 47/005
Monitoring or checking of cementation quality or level
E21B47/005 (Monitoring or checking of cementation quality or level) appears on 637 US grants and 746 published applications in this corpus.
Search patents in E21B- Granted patents
- 637
- Published applications
- 746
- Assignees
- 169
- Inventors
- 1,248
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 4 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 4 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 4 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 2 | 0 |
| 2000 | 5 | 0 |
| 2001 | 3 | 0 |
| 2002 | 2 | 5 |
| 2003 | 1 | 0 |
| 2004 | 3 | 2 |
| 2005 | 1 | 4 |
| 2006 | 5 | 10 |
| 2007 | 7 | 7 |
| 2008 | 3 | 7 |
| 2009 | 3 | 10 |
| 2010 | 10 | 10 |
| 2011 | 6 | 10 |
| 2012 | 11 | 10 |
| 2013 | 6 | 19 |
| 2014 | 7 | 32 |
| 2015 | 15 | 29 |
| 2016 | 19 | 57 |
| 2017 | 39 | 70 |
| 2018 | 43 | 84 |
| 2019 | 77 | 50 |
| 2020 | 58 | 46 |
| 2021 | 49 | 59 |
| 2022 | 44 | 50 |
| 2023 | 51 | 54 |
| 2024 | 49 | 40 |
| 2025 | 35 | 42 |
| 2026 | 35 | 39 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method and tool for cementing wellbore8 Sep 2026US 12,729,599 B2
- Efficient beam profile imaging for non-negligible wave properties and rotationally anisotropic geometries25 Aug 2026US 12,716,870 B2Halliburton Energy Services.Inc.
- Methods and systems related to remote measuring and sensing18 Aug 2026US 12,711,335 B2William Marsh Rice University
- Computing A0 mode attenuation for cement evaluation in cased wells11 Aug 2026US 12,704,063 B2Halliburton Energy Services.Inc.
- Downhole apparatus and method for operations involving delivery and hardening of settable materials14 Jul 2026US 12,680,417 B2Expro North Sea Limited
- Processing and joint interpretation using multiple borehole acoustic waves for through tubing cement evaluation8 Oct 2026US 2026/0309020 A1Halliburton Energy Services.Inc.
- Hydraulic fracturing framework1 Oct 2026US 2026/0298071 A1Schlumberger Technology Corporation
- Engineering bionic experimental system and method for evaluating adaptive borehole plugging effect based on nmr24 Sep 2026US 2026/0286832 A1Taiyuan University of Technology
- Method for cement bond evaluation24 Sep 2026US 2026/0287776 A1Halliburton Energy Services.Inc.
- Method and tool for cementing wellbore17 Sep 2026US 2026/0275826 A1Baker Hughes Oilfield Operations LLC
Most cited
By later US patents
- Method to cement a wellbore295US 5,409,071 AShell Oil Company · 1995
- Use of micro-electro-mechanical systems (MEMS) in well treatments247US 8,316,936 B2Halliburton Energy Services.Inc. · 2012
- Casing mounted sensors, actuators and generators225US 6,429,784 B1Dresser Industries, Inc. · 2002
- Use of micro-electro-mechanical systems (MEMS) in well treatments141US 7,712,527 B2Halliburton Energy Services.Inc. · 2010
- Method and apparatus for acoustically investigating a casing and cement bond in a borehole119US 4,255,798 ASchlumberger Technology Corporation · 1981